How to solve the slow LAN speed problems

[Mahish]

Hi all,

I have a newly built small-scale local area network, a Servers, A dozen workstations, using a Exchange Machines as access devices, the connection lines for the 6 class lines. The performance of the main fault within the computer network transmission speeds for the slow.The copying speed of 100MB file is 30 minutes. How to solve the slow LAN speed problems. Thanks in advance.

[Big Fish]

Arbitrarily select a few workstations, check its network configuration is correct. Be able to pass the server Ping response time <1ms, part of the normal range, that is, connectivity is no problem. In one of the WINDUMP installed on your computer to obtain data packets, the results did not find any problems, it ruled out a hacker attack or the possibility of worm. Check and reply.

[Shen]

In the exclusion line fault, we know that all computers have emerged within the computer network transmission speeds slower problems, it may only be the largest Category 6 cabling routes through the rates. Want to know is Category 6 cabling line problem is very simple, as long as the line with a Category 5 Category 6 cable can be replaced, if the net change computer speed fast, then there are six categories circuit problems, but within a computer network transmission speed is still slow, indicating six categories this line in question is unlikely. All the best.

[Steve123]

Depends on the fault is not the problem of overloading the switch, as long as the switch to restart the computer after the net to see if there is no change in fast transmission speed; but here is useless, so rule out the possibility of overloading the switch. A sample of several workstations, network cards status, found that a few computers are in half-duplex state of the card. And delete some unused network agreement, Fault still exists. Best of luck.

[Milton.J]

The switch to use Web management login, view the status of various port errors are no problem; but accidentally found the switch for each port is located has become a mandatory full-duplex state; us back to the workstation The cards are in half-duplex state, is not the port mode does not match the slow speed caused the problem, so the switch port into adaptive state, the failure to resolve. Check and reply.

[Spyrus]

Failure analysis of LAN have the following possibilities:
1. Hacker attacks or the worm
2. Line fault
3. Exchange Machine overload
4. Network adapter failure
5. Connectivity problems.